K 10
svn:author
V 7
delphij
K 8
svn:date
V 27
2014-10-04T08:51:57.354372Z
K 7
svn:log
V 217
Add a new sysctl, vfs.zfs.vol.unmap_enabled, which allows the system
administrator to toggle whether ZFS should ignore UNMAP requests.

Illumos issue:
    5149 zvols need a way to ignore DKIOCFREE

MFC after:	2 weeks

END